https://www.chewy.com/education/cat/training-and-behavior/why-would-cats-sleep-with-their-eyes-open
It can look a bit unsettling when cats fall asleep with their eyes open, sometimes giving the impression that something might be wrong. However, this behavior is actually quite common and nothing to worry about.
Cats, much like some people, may sleep with their eyes partially open, especially as they get older.
*Their sleep is often Light At First, allowing them to stay alert to their surroundings - a trait inherited from their wild ancestors who needed to conserve energy for sudden bursts of hunting activity.
While they nap for many hours each day, they cycle through lighter and deeper stages of sleep and sleeping with eyes open can simply be part of this process.
There is no need to panic if you see your cat snoozing with eyes open; it is generally normal and healthy.
If any concerns arise, a vet check can help rule out minor issues like Dry Eyes.
During sleep, cats’ eyelids may gradually close as they enter deeper stages, and you might even notice subtle eye movements as they dream.
This quirky behavior is just one of the many unique ways cats express themselves, and as long as your cat is otherwise healthy and happy, it is perfectly fine to appreciate this odd but harmless habit.
Cats truly are wonderfully unique creatures, and their quirky habits - like sleeping with their eyes open - only add to their charm.
Chewy editorial team encourages you to cherish these little moments, knowing your feline friend is resting peacefully and feeling safe in your loving care.